Adventure Game Studio is a freeware development tool and engine originally created by British programmer Chris Jones in 1997 under the name Adventure Creator. A revised version retitled Adventure Game Studio was released in 1999 and soon attracted a community of enthusiast game developers. In 2010, Jones released the source code of the engine and editor, and members of the community have subsequently taken over development of AGS.
AGS has been used to create thousands of freeware games, as well as several games that were commercially released. Among the best-known are Ben "Yahtzee" Croshaw's Chzo Mythos, the Blackwell series and Gemini Rue from publisher Wadjet Eye, the retail simulator Cart Life, and remakes of old Sierra and LucasArts titles.